Trolley-track.



.PATENTED JULY 17, 1906.

W. J. SUMNER. TROLLEY TRACK.

APPLICATION FILED APB.9.1906.

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strength to this part of WILLIAM J. SUMNER, OF HOLi OK E, MASSACHUSETTS, ASSICNOR TO COBURN TROLLEY TRACK MANUFACTURING COMPANY, OF VIL- LIMANSETT, MASSACHUSETTS,

A CORPORATION.

TROLLEY-TRACK.

Specification of Letters Patent.

Patented July 17, 1906.

Application filed April 9,1906. Serial No. 310,771.

T0 at whom it may concern."

Be it known that I, WILLIAM J. SUMNER, a citizen of the United States of America, residing at Holyoke, in the county of Hampden and State of Massachusetts, have invented new and useful'Improvements in Trolley- Tracks, of which the following is a specification.

This invention relates to trolley-tracks; and it has for its object to provide a structure that is economical to manufacture and one that embodies great strength with the employiment of the minimum amount of material use Broadly, the invention consists in rolling or stamping the bar or track iron so that the tread portion thereof will be formed on a double or ogee curve, and the portion below the ogee curve being bent so as to form the bracket portion of the track and including means for supporting the lower end of the bracket portion on the hanger-iron.

In the drawings forming part of this application, Figure 1 is a side elevation of my improved trolley-track and hanger therefor. Fig. 2 is a vertical sectional view of the same on the line 2 2, Fig. 1. Fig. 3 is a detailed view of a modification of the track-iron, having the space beneath the double or ogee curve made integral with the hanger for supporting this portion of the track.

Referring to the drawings in detail, a indicates the beam or framework of the permanent structure to which the hanger l) for supporting the track-iron c is secured by means of the bolts d. The track-iron c, as shown, is rolled, bent, or stamped so as to have the double-curved portion e, on which the supporting-wheels run, the wheels being also turned so as to have a double or ogee curve, as shown. The lower end of the track-iron c is rebent toward itself, so as to form a footpiece or bracket part f, which is stepped into a notch g in the lower end of the depending hanger b, as shown, the lower end of the hanger being formed with an enlargement h for the purpose of imparting the proper the hanger.

The upper ends of the track-irons are secured to the hangers b by means of the bolt 2', which passes through a hole in' the hanger and track-iron, as shown.

j designates the track-wheels, which are rigidly keyed or secured to the axle in. Depending from this aXle 7c is the supportinghanger m. The part of the hanger m above the axle 7c is constructed with a thickened portion, as indicated at a. Extending between the lower ends of the hanger m is a connecting-piece 0, depending from the middle of which is a clevis 1), having an eye in the lower part thereof, to which a chain or hook may be attached for supporting any desired weight. The clevis p is secured to the connecting part 0 by means of a transverse bolt r. The connecting-piece 0 is secured to the hangers m by the nuts .9 and t.

It will be noticed that the track-wheels j are provided with flanges on the inner sides thereof, which flanges are adapted to engage the outer curved part of the track-ironf, as shown at o.

By using the flange on the track-wheels 7' means are provided by which the wheels are prevented from lateral movement on the traclciron; but it is to be understood that lateral movement is also prevented by the wheels engaging the curved part to of the track, causing the wheels to be self-centering.

The hangers m between the connectingpiece 0 and the axle 7c are made much thinner than the rest of the hangers, as indicated at m.

It will therefore be seen that I have devised a track of great strength and simplicity and one which can be quickly manufactured and placed in position at a small cost.

The structure shown in Fig. 3 has a filling piece 2 located in the space below the double or ogee curve and the bracket f for the purpose of making a stronger and more rigid track. The piece 2 is flush with the outer face of the hangers Z) and is preferably cast integral with the hanger-iron.

Having thus described my invention, what I claim, and desire to secure byLetters Patent of the United States, is

1. In an improvement of the class de scribed, a depending hanger secured to a suitable support, track-irons supported on said hanger and having bent portions facing each other andforming a trough-shaped track with the tread portion of each track made in the form of a double curve, and means for securing the track-irons to the depending hanger.

2. In an improvement of the class described, a track-iron having a straight portion, a double-curved portion, and means for securing the track-iron to a suitable support, a portion of the track-iron constituting a brace for the double-curved portion.

3. In a carrier device, a hanger having two parallel portions, an enlargement at the lower end of the depending portions of the hanger with aspace portion between the depending portion and. the enlarged portion, track-irons secured to the two parallel portions and stepped into the space portion.

4. In a carrier device, a hanger having two parallel portions, an enlargement at the lower end of the depending portions of the hanger with a space portion between the depending portion and the enlarged portion,track-irons having straight portions secured to the depending portions of the hanger and also having a double-curved portion constituting the tread of the track-iron and a bracket portion stepped into the space portion and secured to the two parallel portions.

5. In a carrier device of the class described, a hanger secured to a fixed part and having two parallel depending portions with an enlargement at the lower end of the depending portions, forming a space between the depending portions and the enlarged portion, track-irons secured to the parallel depending portions and formed with a doublecurved portion constituting the tread ofthe track and having a bracket portion below the tread of the track and stepped into the space.

6. In an improved trolley-track, a track iron having a double or ogee curved portion constituting the tread of the track, a bracket portion below the track part of the iron, and means for supporting the track-iron.

7. In an improved trolley-track having a straight portion, a double ogee or curved portion, and a bracket portion below the doublecurved portion, and a filling-piece between the curved and bracket portions, as described.

WILLIAM J. SUMNER.

Witnesses:

R. I. CLEMoNs, HARRY W. BOWEN. I 

